170 FORAMINIFERA OF THE CRAG. 



Bolivina ^Enaeiensis, Brady, 1882. Proceed. Eoy. Soc. Edinb., vol. xi, p. 711, 



Table. 

 Idem, 1884. Eeport 'Challenger,' p. 423, pi. liii, figs. 



10, 11. 

 Brady, Parker, and Jones, 1888. Trans. Zool. Soc, vol. 

 xii, part 7, p. 221, pi. xliii, figs. 2, 4, 5. 

 — Malagoli, 1889. Boll. Soe. Geol. Ital., vol. vii, p. 377, 



pi. xiv, figs. 11, 12. 



Characters. — Small, compressed, elongate, lanceolate in outline, with numerous 

 regular, Textilariform, curved chambers. There are no external ornaments, such 

 as the linear costulae, which Brady noticed to be sometimes absent, and which are 

 wanting in a specimen from the Abrohlos, ' Trans. Zool. Soc.,' 1888, pi. xliii, fig. 5. 

 Individuals vary also in their relative width and length, as is shown in the same 

 pi. xliii. 



Occurrence. — Bolivina Mnariensis has been most commonly met with in 

 dredgings from the North Atlantic, and is everywhere confined apparently 

 to the littoral shallow zones. The greatest depth from which specimens have been 

 recorded is 1630 fathoms in the Faroe Channel. Our earliest record of the species 

 in a fossil condition is from the Miocene of Italy, and of Muddy Creek, Victoria. 

 It has also been recorded from the Pliocene of Italy ; and we have specimens in 

 our own collections from the Casterlian and Scaldisian of Antwerp. In the 

 Coralline Crag we have specimens from every zone examined. The figured 

 specimen is from Sudbourne Hall, zone d. 



Sub-family 3. — CASSIDULINlNiE. 



Brady, Report ' Challenger? 1884, pp. 69, 427. 



General Characters. — Test consisting of a Textilarioid series of alternating 

 segments, more or less coiled on itself. 



(!<' a us 1. — Cassidulina, (VOrbigny, 1826. 



Cassidulina, d' Orbigny, Sander-liang, Menke, Bronn, Reuss, Schultze, Egger, 

 Barker and Jones, Williamson, Carpenter, Brady, M. Sars, Barfitt, Alcock, 

 Winthcr, Schuhe, G. M. Dawson, von Rantken, Seguenza, Wright, Norman, 

 Butschli, Terrigi, Franzenau, Rartwig, Greene, Zittel, Schivager, Nicholson, 

 Schlumberger, Quenstedt, Basset, Karrer, Andreae, Sherborn, Chapman, 

 Chippy, Sfc. 



